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wkhtmltopdf: cannot connect to X server
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21 Answers
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Linking R and Julia?
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42
The RJulia R package looks quite good now from R. R CMD check runs without warnings or errors...
Integrate ZXing in Android Studio
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234
I was integrating ZXING into an Android application and there were no good sources for the inp...
Preferred way to create a Scala list
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answered Aug 6 '09 at 20:56
Daniel C. SobralDaniel C. Sobral
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Dictionaries and default values
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323
Like this:
host = connectionDetails.get('host', someDefaultValue)
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Get ID of last inserted document in a mongoDB w/ Java driver
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answered Jul 26 '10 at 21:41
Matt WMatt W
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Finding local IP addresses using Python's stdlib
How can I find local IP addresses (i.e. 192.168.x.x or 10.0.x.x) in Python platform independently and using only the standard library?
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How can I check for Python version in a program that uses new language features?
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112
You can test using eval:
try:
eval("1 if True else 2")
except SyntaxError:
# doesn't have t...
Add a common Legend for combined ggplots
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Update 2015-Feb
See Steven's answer below
df1 <- read.table(text="group x y
group1 -0.212201 0.358867
group2 -0.279756 -0.126194
group3 0.186860 -0.203273
group4 0.417117 -0.002592
group1 -0.212201 0.358867
group...
Should methods in a Java interface be declared with or without a public access modifier?
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12 Answers
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